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Stricter Regulations for Heavy Duty Vehicle Emissions

The Thai Industrial Standards Institute (TISI) has recently unveiled a draft regulation for Heavy Motor Vehicles.

The draft law aims to establish stringent standards for engine vehicles equipped with positive ignition engines.

The recently introduced Ministerial Regulation will bring about significant changes in the automotive industry, specifically targeting heavy motor vehicles equipped with positive ignition engines. With the objective of enhancing safety and reducing emissions, the regulation outlines stringent standards that must be adhered to by various vehicle categories.

The draft of this regulation is intended to apply to motor vehicles in categories M1, M2, N1, and N2 (as defined in TIS 2390-2563) with positive-ignition engines and a reference mass greater than 2,610 kg, and to all motor vehicles in categories M3 and N3. It lays out specific guidelines for safety, focusing on pollutants, durability of pollution control devices, and the on-board diagnostic (OBD) system.

Type approvals under this regulation are extended to incomplete vehicles weighing below 2,610 kg, as long as manufacturers demonstrate compliance with increased reference masses. Additionally, variants and versions weighing over 2,380 kg must fulfill requirements for greenhouse gas emissions and fuel consumption standards.

This comprehensive and stringent regulation aims to promote safety and reduce emissions in heavy vehicles equipped with positive ignition engines. By establishing standardized safety requirements and emission levels, it sets a foundation for improved vehicle performance and environmental impact, ensuring a more sustainable future for the automotive industry.

The proposed date of implementation for these regulations is set for January 1st, 2026. The complete text of the regulation can be accessed HERE.

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